<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>ajax javascript</title>
    <link rel="stylesheet" href="css/style.css">
</head>
<body>
<header>
    <div class="logo">
        <img src="logo.png" alt="">
        <span id="btn">换一换</span>
    </div>

    <div id="list"></div>
</header>


<script src="js/script.js"></script>
</body>
</html>